South Antrim MLA Declan Kearney told the BBC: "This outcome tonight dramatically changes the political landscape here in the north of Ireland and we will be intensifying our case for the calling of a border poll (on a united Ireland)."

North Antrim MLA Daithi McKay tweeted: "Union sinking. North voted to REMAIN & only way to do that is to join with South. Time for poll to remove the border."